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EP2761199B1 - Disk brake for a commercial vehicle - Google Patents

Disk brake for a commercial vehicle Download PDF

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Publication number
EP2761199B1
EP2761199B1 EP12762627.3A EP12762627A EP2761199B1 EP 2761199 B1 EP2761199 B1 EP 2761199B1 EP 12762627 A EP12762627 A EP 12762627A EP 2761199 B1 EP2761199 B1 EP 2761199B1
Authority
EP
European Patent Office
Prior art keywords
brake
pressure piece
fitting element
disc
adjusting spindle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP12762627.3A
Other languages
German (de)
French (fr)
Other versions
EP2761199A1 (en
Inventor
Manfred Schoenauer
Markus Bartel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Original Assignee
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH filed Critical Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Publication of EP2761199A1 publication Critical patent/EP2761199A1/en
Application granted granted Critical
Publication of EP2761199B1 publication Critical patent/EP2761199B1/en
Active legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
    • F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095—Pivots or supporting members therefor
    • F16D65/097—Resilient means interposed between pads and supporting members or other brake parts
    • F16D65/0971—Resilient means interposed between pads and supporting members or other brake parts transmitting brake actuation force, e.g. elements interposed between brake piston and pad
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095—Pivots or supporting members therefor
    • F16D65/097—Resilient means interposed between pads and supporting members or other brake parts
    • F16D65/0972—Resilient means interposed between pads and supporting members or other brake parts transmitting brake reaction force, e.g. elements interposed between torque support plate and pad
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
    • F16D65/183—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes with force-transmitting members arranged side by side acting on a spot type force-applying member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/14—Mechanical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/58—Mechanical mechanisms transmitting linear movement

Definitions

  • the invention relates to a disc brake for a commercial vehicle according to the preamble of claim 1.
  • a disc brake is in the EP 1 994 301 B1 revealed. It is proposed to provide a connected to an adjusting spindle of the brake temple, to rotatable pressure piece as positive locking element with a profiling, which engages in a matching thereto profiling a lining carrier plate of an application-side brake pad. This ensures that the force acting on a bridge of the application device in which the brake stamp is mounted, acting bending forces, at the same time, however, the brake pad is supported on a Bremsharihorn a stationary, the brake caliper bearing brake carrier.
  • the brake pad While the brake pad is replaced as wear part upon reaching a predetermined minimum thickness attached to the lining carrier plate friction lining, usually in unverschlissener profiling of the lining carrier plate, the brake plunger including the connected positive locking element permanently in the caliper or the application device, so that the mentioned wear of the positive locking element with increasing operating time intensified, with the described consequences.
  • the invention has for its object to further develop a disc brake of the generic type so that their reliability is improved.
  • the interlocking element By the invention, which is also relatively simple and inexpensive to implement manufacturing technology, it is possible to replace the interlocking element before reaching a wear limit, that is, to replace an installed with a new one.
  • the replacement can in principle be carried out when the brake pad must be replaced, whereby experience has shown that the wear of the positive locking element has not yet progressed to an extent that the reliability would be limited or at risk.
  • the form-locking element consists of a centrally held in the pressure piece insert, which is releasably connected to the pressure piece. While the insert has the necessary for the positive connection with the lining carrier plate profiling, the pressure piece in the adjacent contact area with the lining carrier plate is flat.
  • the insert may be made of magnetic or non-magnetic material, while the pressure piece is formed correspondingly opposite polarity, so that the insert is magnetically held on the pressure piece. It is also conceivable, however, that the insert is pressed or glued to the pressure piece.
  • the insert is cup-shaped, wherein the circumferential, axially aligned wall portion outside forms a contact surface for connection to the pressure piece.
  • the use takes over storage function relative to the adjusting spindle, wherein a thrust bearing, for example in the form of a bearing ring, is integrated in the cup-like insert and this is plugged together with the thrust bearing as a ring on a front-side pin of the adjusting spindle.
  • the thrust bearing can be formed from an applied on the inside of the wall of the insert or the pin sliding layer.
  • the insert is hermetically sealed held in the pressure piece, so that no dirt and moisture can get into the connection area with the adjusting spindle.
  • the invention provides a remarkable improvement in the operational safety of the disc brake as a whole. Contributes to this, that with appropriate shaping of the profiling form-locking element / lining carrier plate unscrewing the brake pad is prevented during braking. Moreover, with timely replacement of the positive locking element further, caused by its wear repair work can be prevented by simple means to total replacement of the disc brake.
  • the invention meets not only the requirements for optimized reliability, but also the requirements for a cost-optimized operation of the disc brake.
  • FIG. 1 is schematically illustrated a disc brake for a commercial vehicle, with a brake disc 2 cross caliper, in which both sides of the brake disc 2 positioned and mounted in lining shafts of a stationary brake carrier 4 brake pads 3 are arranged, of which a zuspannwooder means of a clamping device 7 at a braking against the Brake disc 2 is pressed.
  • the opposite, reaction-side brake pad 3 is then likewise pressed against the brake disk 2 via the brake caliper 1, which is held displaceably on the brake carrier 4.
  • the application device 7 has two parallel and spaced apart brake plungers 8, each consisting of a rotatably held in a bridge 11 of the application device 7 adjusting spindle 9, at whose the application side brake pad 3 facing end side, a pressure piece 10 is connected.
  • the brake ram 8 in the region of its pressure piece 10, a form-locking element 12 which engages positively in a profiling of a lining carrier plate 5, which carries a brake disc 2 contacting friction lining 6.
  • the form-fitting element 12 is exchangeable, wherein in the Figures 2-5 shown variants of the positive locking element 12 consists of an inserted into the pressure piece 10 insert, with a respect to the free end face of the pressure piece 10 raised profile 13th
  • the positive locking element 12 is shown mounted in the pressure piece 10 position while the FIG. 2b) the positive locking element 12 reproduces as a detail.
  • the form-fitting element 12 is pot-shaped, with a circumferential, axially oriented wall 14 which bears against a wall of a recess 17 of the pressure piece 10.
  • the connection between the positive-locking element 12 and the pressure piece 10 frictionally, formally or cohesively produced.
  • the first case by pressing the insert and in the latter case, for example by gluing.
  • the thrust piece 10 is formed as a ring, with a graduated in the direction of the adjusting spindle 9, in the region of larger diameter, the form-locking element 12 rests, while the area of smaller diameter encloses a thrust bearing 15, with which the thrust piece 10 rotatably a frontally provided on the adjusting spindle 9 pin 16 is supported.
  • the recess 17 is formed as a blind hole, with a separation by a bottom formed to the pin 16th
  • the recess 17 in the pressure piece 10 is formed continuously cylindrical, wherein the wall 14 of the positive locking element 12 shell side abuts the entire surface of the wall of the pressure piece 10, while the inside of the thrust bearing 15 is arranged, which is guided on the pin 16.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Description

Die Erfindung betrifft eine Scheibenbremse für ein Nutzfahrzeug nach dem Oberbegriff des Anspruchs 1.The invention relates to a disc brake for a commercial vehicle according to the preamble of claim 1.

Eine Scheibenbremse ist in der EP 1 994 301 B1 geoffenbart. Darin wird vorgeschlagen, ein an einer Stellspindel des Bremsstempels angeschlossenes, dazu verdrehbares Druckstück als Formschlusselement mit einer Profilierung zu versehen, die in eine daran angepasste Profilierung einer Belagträgerplatte eines zuspannseitigen Bremsbelags eingreift. Dadurch wird erreicht, dass die auf eine Brücke der Zuspanneinrichtung, in der der Bremsstempel gelagert ist, einwirkenden Biegekräfte verringert werden, gleichzeitig sich jedoch der Bremsbelag an einem Bremsträgerhorn eines ortsfesten, den Bremssattel tragenden Bremsträgers abstützt.A disc brake is in the EP 1 994 301 B1 revealed. It is proposed to provide a connected to an adjusting spindle of the brake temple, to rotatable pressure piece as positive locking element with a profiling, which engages in a matching thereto profiling a lining carrier plate of an application-side brake pad. This ensures that the force acting on a bridge of the application device in which the brake stamp is mounted, acting bending forces, at the same time, however, the brake pad is supported on a Bremsträgerhorn a stationary, the brake caliper bearing brake carrier.

Die beim Bremsen auftretenden, insbesondere in Umfangsrichtung der Bremsscheibe wirkenden Kräfte führen zu einer erheblichen Belastung der Profilierungen und in der Folge zu deren Verschleiß, durch den sich die Profilierung derart abnutzt, dass der Formschluss in dem erforderlichen Maße nicht mehr gegeben ist.The forces occurring during braking, in particular acting in the circumferential direction of the brake disc forces lead to a considerable load on the profiles and in consequence to their wear, through which the profiling wears so that the positive locking is no longer given in the required extent.

Damit besteht die Gefahr eines Verklemmens des Bremsbelages zwischen dem Bremsstempel und der Bremsscheibe, was zu einem Heißlaufen der Scheibenbremse und deren Beschädigung bis hin zum Funktionsausfall führen kann.Thus there is a risk of jamming of the brake lining between the brake piston and the brake disc, which can lead to overheating of the disc brake and its damage up to the functional failure.

Während der Bremsbelag als Verschleißteil bei Erreichen einer vorgegebenen Minimaldicke eines an der Belagträgerplatte angebrachten Reibbelages ausgetauscht wird, üblicherweise bei unverschlissener Profilierung der Belagträgerplatte, verbleibt der Bremsstempel einschließlich des angeschlossenen Formschlusselementes dauerhaft im Bremssattel bzw. der Zuspannvorrichtung, so dass sich der erwähnte Verschleiß des Formschlusselementes mit zunehmender Betriebsdauer verstärkt, mit den geschilderten Folgen.While the brake pad is replaced as wear part upon reaching a predetermined minimum thickness attached to the lining carrier plate friction lining, usually in unverschlissener profiling of the lining carrier plate, the brake plunger including the connected positive locking element permanently in the caliper or the application device, so that the mentioned wear of the positive locking element with increasing operating time intensified, with the described consequences.

Gerade, weil es sich bei einer Scheibenbremse um ein sicherheitsrelevantes Funktionsteil handelt, kommt diesem Umstand eine besondere Bedeutung zu.Precisely because a disc brake is a safety-relevant functional part, this fact is of particular importance.

Aus der WO 97/13078 A1 ist eine Scheibenbremse nach dem Oberbegriff des Anspruchs 1 bekannt. Darin wird vorgeschlagen das Formschlusselement als austauschbaren Einsatz auszubilden, der einen in ein Druckstück eingepressten Zapfen und einen daran angeformten hammerartigen Kopf aufweist, der formschlüssig in eine Belagträgerplatte eines Bremsbelages eingreift.From the WO 97/13078 A1 is a disc brake according to the preamble of claim 1 is known. Therein it is proposed to form the interlocking element as a replaceable insert, which has a pin pressed into a pressure piece and a hammer-like head formed thereon, which engages positively in a lining carrier plate of a brake pad.

Der Erfindung liegt die Aufgabe zugrunde, eine Scheibenbremse der gattungsgemäßen Art so weiterzuentwickeln, dass ihre Funktionssicherheit verbessert wird.The invention has for its object to further develop a disc brake of the generic type so that their reliability is improved.

Diese Aufgabe wird durch eine Scheibenbremse mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by a disc brake with the features of claim 1.

Durch die Erfindung, die im Übrigen auch fertigungstechnisch relativ einfach und kostengünstig zu realisieren ist, besteht die Möglichkeit, vor Erreichen einer Verschleißgrenze das Formschlusselement auszutauschen, d.h., ein installiertes durch ein neues zu ersetzen. Dabei kann der Austausch prinzipiell dann erfolgen, wenn auch der Bremsbelag ausgetauscht werden muss, wobei erfahrungsgemäß der Verschleiß des Formschlusselementes bis dahin noch nicht in einem Maße fortgeschritten ist, dass die Funktionssicherheit eingeschränkt bzw. gefährdet wäre.By the invention, which is also relatively simple and inexpensive to implement manufacturing technology, it is possible to replace the interlocking element before reaching a wear limit, that is, to replace an installed with a new one. In this case, the replacement can in principle be carried out when the brake pad must be replaced, whereby experience has shown that the wear of the positive locking element has not yet progressed to an extent that the reliability would be limited or at risk.

Prinzipiell möglich ist der Austausch des dann insgesamt als Formschlusselement fungierenden Druckstücks, das verdrehbar, jedoch axial gesichert an der Stellspindel gehalten ist.In principle, it is possible to exchange the pressure element, which then acts as a form-fitting element as a whole, which is held rotatably but axially secured to the adjusting spindle.

Das Formschlusselement besteht aus einem zentral im Druckstück gehaltenen Einsatz, der mit dem Druckstück lösbar verbunden ist. Während der Einsatz die für den Formschluss mit der Belagträgerplatte notwendige Profilierung besitzt, ist das Druckstück im angrenzenden Anlagebereich mit der Belagträgerplatte flächig ausgebildet.The form-locking element consists of a centrally held in the pressure piece insert, which is releasably connected to the pressure piece. While the insert has the necessary for the positive connection with the lining carrier plate profiling, the pressure piece in the adjacent contact area with the lining carrier plate is flat.

Der Einsatz kann aus magnetischem oder unmagnetischem Material bestehen, während das Druckstück entsprechend gegenpolig ausgebildet ist, so dass der Einsatz magnetisch am Druckstück gehalten wird. Denkbar ist jedoch auch, dass der Einsatz mit dem Druckstück verpresst oder verklebt ist.The insert may be made of magnetic or non-magnetic material, while the pressure piece is formed correspondingly opposite polarity, so that the insert is magnetically held on the pressure piece. It is also conceivable, however, that the insert is pressed or glued to the pressure piece.

Nach der Erfindung ist der Einsatz topfförmig ausgebildet, wobei der umlaufende, axial ausgerichtete Wandbereich außenseitig eine Anlagefläche zur Verbindung mit dem Druckstück bildet.According to the invention, the insert is cup-shaped, wherein the circumferential, axially aligned wall portion outside forms a contact surface for connection to the pressure piece.

Des Weiteren übernimmt der Einsatz Lagerungsfunktion gegenüber der Stellspindel, wobei ein Druckstücklager, beispielsweise in Form eines Lagerringes, in dem topfartigen Einsatz integriert ist und dieser gemeinsam mit dem Druckstücklager als Ring auf einen stirnseitigen Zapfen der Stellspindel aufgesteckt ist. Dabei kann das Druckstücklager aus einer auf die Innenseite der Wandung des Einsatzes oder des Zapfens aufgebrachten Gleitschicht gebildet sein.Furthermore, the use takes over storage function relative to the adjusting spindle, wherein a thrust bearing, for example in the form of a bearing ring, is integrated in the cup-like insert and this is plugged together with the thrust bearing as a ring on a front-side pin of the adjusting spindle. In this case, the thrust bearing can be formed from an applied on the inside of the wall of the insert or the pin sliding layer.

Bevorzugt ist der Einsatz hermetisch abgedichtet im Druckstück gehalten, so dass kein Schmutz und keine Feuchtigkeit in den Verbindungsbereich mit der Stellspindel gelangen können.Preferably, the insert is hermetically sealed held in the pressure piece, so that no dirt and moisture can get into the connection area with the adjusting spindle.

Unabhängig von der Ausgestaltung bzw. Befestigung des Formschlusselementes ist erfindungsgemäß die Möglichkeit des Austausches bei Bedarf, wodurch die zum Stand der Technik beschriebenen Probleme wirkungsvoll verhindert werden. Insbesondere ist durch die Erfindung eine bemerkenswerte Verbesserung der Betriebs- bzw. Funktionssicherheit der Scheibenbremse insgesamt gegeben. Hierzu trägt auch bei, dass bei entsprechender Formgebung der Profilierung Formschlusselement/Belagträgerplatte ein Herausdrehen des Bremsbelages bei einer Bremsung verhindert wird. Überdies können bei rechtzeitigem Austausch des Formschlusselementes weitergehende, durch dessen Verschleiß bedingte Reparaturarbeiten bis hin zum Totalersatz der Scheibenbremse mit einfachen Mitteln verhindert werden.Regardless of the configuration or attachment of the positive locking element according to the invention is the possibility of exchange if necessary, whereby the problems described in the prior art are effectively prevented. In particular, the invention provides a remarkable improvement in the operational safety of the disc brake as a whole. Contributes to this, that with appropriate shaping of the profiling form-locking element / lining carrier plate unscrewing the brake pad is prevented during braking. Moreover, with timely replacement of the positive locking element further, caused by its wear repair work can be prevented by simple means to total replacement of the disc brake.

Damit wird durch die Erfindung nicht nur den Anforderungen an eine optimierte Betriebssicherheit, sondern auch den Anforderungen an einen kostenoptimierten Betrieb der Scheibenbremse entsprochen.Thus, the invention meets not only the requirements for optimized reliability, but also the requirements for a cost-optimized operation of the disc brake.

Weitere vorteilhafte Ausbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet.Further advantageous embodiments of the invention are characterized in the subclaims.

Ausführungsbeispiele der Erfindung werden nachfolgend anhand der beigefügten Zeichnungen beschrieben. Es zeigen:

Figur 1
eine Scheibenbremse in einer teilweise geschnittenen Draufsicht
Figuren 2-4:
verschiedene Ausführungsbeispiele als Einzelheit, in geschnittener bzw. perspektivischer Ansicht.
Figur 5:
Ausführungsbeispiel der Erfindung als Einzeleinheit, in geschnittener bzw. perpektivischer Ansicht.
Embodiments of the invention will be described below with reference to the accompanying drawings. Show it:
FIG. 1
a disc brake in a partially sectioned plan view
Figures 2-4:
various embodiments as a detail, in a sectional or perspective view.
FIG. 5:
Embodiment of the invention as a single unit, in a sectional or perspective view.

In der Figur 1 ist schematisch eine Scheibenbremse für ein Nutzfahrzeug dargestellt, mit einem eine Bremsscheibe 2 übergreifenden Bremssattel, in dem beidseitig der Bremsscheibe 2 positionierte und in Belagschächten eines ortsfesten Bremsträgers 4 gelagerte Bremsbeläge 3 angeordnet sind, von denen ein zuspannseitiger mittels einer Zuspanneinrichtung 7 bei einer Bremsung gegen die Bremsscheibe 2 pressbar ist. Der gegenüberliegende, reaktionsseitige Bremsbelag 3 wird über den verschieblich am Bremsträger 4 gehaltenen Bremssattel 1 anschließend ebenfalls an die Bremsscheibe 2 gepresst.In the FIG. 1 is schematically illustrated a disc brake for a commercial vehicle, with a brake disc 2 cross caliper, in which both sides of the brake disc 2 positioned and mounted in lining shafts of a stationary brake carrier 4 brake pads 3 are arranged, of which a zuspannseitiger means of a clamping device 7 at a braking against the Brake disc 2 is pressed. The opposite, reaction-side brake pad 3 is then likewise pressed against the brake disk 2 via the brake caliper 1, which is held displaceably on the brake carrier 4.

Die Zuspanneinrichtung 7 weist zwei parallel und abständig zueinander angeordnete Bremsstempel 8 auf, jeweils bestehend aus einer verdrehbar in einer Brücke 11 der Zuspanneinrichtung 7 gehaltenen Stellspindel 9, an deren dem zuspannseitigen Bremsbelag 3 zugewandter Stirnseite ein Druckstück 10 angeschlossen ist.The application device 7 has two parallel and spaced apart brake plungers 8, each consisting of a rotatably held in a bridge 11 of the application device 7 adjusting spindle 9, at whose the application side brake pad 3 facing end side, a pressure piece 10 is connected.

Wie insbesondere die Figuren 2-5 wiedergeben, weist der Bremsstempel 8 im Bereich seines Druckstücks 10 ein Formschlusselement 12 auf, das formschlüssig in eine Profilierung einer Belagträgerplatte 5 eingreift, die einen die Bremsscheibe 2 kontaktierenden Reibbelag 6 trägt. Das Formschlusselement 12 ist austauschbar, wobei die in den Figuren 2-5 gezeigten Varianten des Formschlusselementes 12 aus einem in das Druckstück 10 eingelassenen Einsatz besteht, mit einer gegenüber der freien Stirnseite des Druckstücks 10 erhabenen Profilierung 13.How the particular Figures 2-5 reproduce, the brake ram 8 in the region of its pressure piece 10, a form-locking element 12 which engages positively in a profiling of a lining carrier plate 5, which carries a brake disc 2 contacting friction lining 6. The form-fitting element 12 is exchangeable, wherein in the Figures 2-5 shown variants of the positive locking element 12 consists of an inserted into the pressure piece 10 insert, with a respect to the free end face of the pressure piece 10 raised profile 13th

In der Figur 2a) ist das Formschlusselement 12 in im Druckstück 10 montierter Stellung gezeigt, während die Figur 2b) das Formschlusselement 12 als Einzelheit wiedergibt.In the FIG. 2a) the positive locking element 12 is shown mounted in the pressure piece 10 position while the FIG. 2b) the positive locking element 12 reproduces as a detail.

Bei allen Beispielen ist das Formschlusselement 12 topfartig ausgebildet, mit einer umlaufenden, axial ausgerichteten Wandung 14, die an einer Wandung einer Ausnehmung 17 des Druckstücks 10 anliegt. Dabei kann die Verbindung zwischen dem Formschlusselement 12 und dem Druckstück 10 reib-, form- oder stoffschlüssig hergestellt sein. Im ersten Fall durch Einpressen des Einsatzes und im letzten Fall beispielsweise durch Verkleben.In all examples, the form-fitting element 12 is pot-shaped, with a circumferential, axially oriented wall 14 which bears against a wall of a recess 17 of the pressure piece 10. In this case, the connection between the positive-locking element 12 and the pressure piece 10 frictionally, formally or cohesively produced. In the first case by pressing the insert and in the latter case, for example by gluing.

Bei dem in der Figur 3 gezeigten Beispiel ist das Druckstück 10 als Ring ausgebildet, mit einer in Richtung der Stellspindel 9 abgestuften Ausnehmung, in deren Bereich mit größerem Durchmesser das Formschlusselement 12 einliegt, während der Bereich mit kleinerem Durchmesser ein Druckstücklager 15 umschließt, mit dem sich das Druckstück 10 verdrehbar an einem stirnseitig an der Stellspindel 9 vorgesehenen Zapfen 16 abstützt.In the in the FIG. 3 As shown, the thrust piece 10 is formed as a ring, with a graduated in the direction of the adjusting spindle 9, in the region of larger diameter, the form-locking element 12 rests, while the area of smaller diameter encloses a thrust bearing 15, with which the thrust piece 10 rotatably a frontally provided on the adjusting spindle 9 pin 16 is supported.

In der Figur 4 ist die Ausnehmung 17 als Sackloch ausgebildet, mit einer Trennung durch einen gebildeten Boden zum Zapfen 16.In the FIG. 4 the recess 17 is formed as a blind hole, with a separation by a bottom formed to the pin 16th

Bei der Ausführung nach Figur 5 ist die Ausnehmung 17 im Druckstück 10 durchgehend zylindrisch ausgebildet, wobei die Wandung 14 des Formschlusselementes 12 mantelseitig vollflächig an der Wandung des Druckstücks 10 anliegt, während innenseitig das Druckstücklager 15 angeordnet ist, das auf dem Zapfen 16 geführt ist.In the execution after FIG. 5 the recess 17 in the pressure piece 10 is formed continuously cylindrical, wherein the wall 14 of the positive locking element 12 shell side abuts the entire surface of the wall of the pressure piece 10, while the inside of the thrust bearing 15 is arranged, which is guided on the pin 16.

Bei allen gezeigten Ausführungsbeispielen ist gewährleistet, dass das Druckstück 10 und damit das Formschlusselement 12 verdrehbar an der Stellspindel 9 gehalten ist, so dass das Formschlusselement 12 gegenüber der Belagträgerplatte 5 bei einer Verdrehung der Stellspindel 9 zum Ausgleich eines Lüftspiels zwischen dem Bremsbelag 3 an der Belagträgerplatte 5 fest positioniert bleibt.In all the embodiments shown, it is ensured that the pressure piece 10 and thus the form-locking element 12 is rotatably supported on the adjusting spindle 9, so that the positive-locking element 12 with respect to the lining carrier plate 5 at a rotation of the adjusting spindle 9 to compensate for a clearance between the brake pad 3 on the lining carrier plate 5 remains firmly positioned.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Bremssattelcaliper
22
Bremsscheibebrake disc
33
Bremsbelagbrake lining
44
Bremsträgerbrake carrier
55
BelagträgerplatteBacking plate
66
Reibbelagfriction lining
77
Zuspanneinrichtungapplication device
88th
Bremsstempelbrake plunger
99
Stellspindeladjusting spindle
1010
DruckstückPressure piece
1111
Brückebridge
1212
FormschlusselementForm-fitting element
1313
Profilierungprofiling
1414
Wandungwall
1515
DruckstücklagerYoke bearing
1616
Zapfenspigot
1717
Ausnehmungrecess

Claims (5)

  1. A disc brake for a utility vehicle, with a brake caliper (1) comprising a brake disc (1) and a brake application device (7) arranged in the brake caliper (1) and exhibiting at least one brake plunger (8), with an adjusting spindle (9) and a front end form-fitting element (12) engaging into a profile of a pad carrier plate (5) which can be pressed against the brake disc (2) during braking, wherein the form-fitting element (12) is composed of an exchangeable insert exhibiting at least one profiling (13) and being embedded in a recess (17) of a pressure piece (10) formed as a smooth surface on its side facing the pad carrier plate (5) and being attached to the adjusting spindle (9) so as to be rotatable, with the profiling (13) being raised with respect to the pressure piece's (10) adjacent surface, characterized in that the wall of the form-fitting element (12) that is formed as a cup-like insert, embedded in the pressure piece (10), and connected thereto in a form-fit, friction-fit or material-fit manner, rests against the pressure piece's (10) recess (17) on the shell side and against a pressure piece bearing (15) with its inner side, which pressure piece bearing is held on a pin (16) provided on the front end of the adjusting spindle (9).
  2. The disc brake according to claim 1, characterized in that the form-fitting element (12) is pressed or glued together with the pressure piece (10).
  3. The disc brake according to claim 1 or 2, characterized in that the recess (17) for receiving the form-fitting element (12) is formed as a stepped bore, a cylindrical through-hole or a blind hole.
  4. The disc brake according to any one of the preceding claims, characterized in that the pressure piece bearing (15) is composed of a sliding layer applied to the inner side of the wall of the form-fitting element (12) and/or of the pin (16).
  5. The disc brake according to any one of the preceding claims, characterized in that the form-fitting element (12) is made of a magnetic or nonmagnetic material.
EP12762627.3A 2011-09-28 2012-09-27 Disk brake for a commercial vehicle Active EP2761199B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011115212A DE102011115212A1 (en) 2011-09-28 2011-09-28 Disc brake for a commercial vehicle
PCT/EP2012/069090 WO2013045555A1 (en) 2011-09-28 2012-09-27 Disk brake for a commercial vehicle

Publications (2)

Publication Number Publication Date
EP2761199A1 EP2761199A1 (en) 2014-08-06
EP2761199B1 true EP2761199B1 (en) 2017-05-17

Family

ID=46924465

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12762627.3A Active EP2761199B1 (en) 2011-09-28 2012-09-27 Disk brake for a commercial vehicle

Country Status (3)

Country Link
EP (1) EP2761199B1 (en)
DE (1) DE102011115212A1 (en)
WO (1) WO2013045555A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015114349A1 (en) * 2015-08-28 2017-03-02 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Brake plunger and pneumatically or electromotively actuated disc brake
WO2019174707A1 (en) * 2018-03-12 2019-09-19 Wabco Europe Bvba Disk brake for utility vehicles

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE508707C2 (en) * 1995-10-02 1998-10-26 Volvo Ab Device for disc brakes for motor vehicles
DE19628804B4 (en) * 1996-07-17 2005-09-01 Continental Teves Ag & Co. Ohg Electromechanically actuated disc brake
US5722516A (en) * 1996-11-12 1998-03-03 Meritor Heavy Vehicle Systems, Llc Disc brake with rigid connection between load plate and adjusting piston
GB0301798D0 (en) * 2003-01-25 2003-02-26 Meritor Heavy Vehicle Braking Force transmission device for a disc brake
DE102006010215B3 (en) 2006-03-06 2007-10-11 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH disc brake
DE102007020572A1 (en) * 2007-05-02 2008-11-27 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Brake lining for disk brake of e.g. commercial vehicle, has friction lining fastened to carrying plate that exhibits two partial plates, where one partial plate bears friction lining and another partial plate forms tail of friction lining
DE102008008308A1 (en) * 2008-02-07 2009-08-13 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Disc brake, in particular for a commercial vehicle
DE102009050332A1 (en) * 2009-10-22 2011-05-05 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Self-reinforcing disc brake and brake pad for it

Also Published As

Publication number Publication date
WO2013045555A1 (en) 2013-04-04
EP2761199A1 (en) 2014-08-06
DE102011115212A1 (en) 2013-03-28

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